Featured Blog Posts (498)

Building Science is not really science

Building Science is not really science; it is more of a concept. While the concepts were developed by scientists the system itself is not really hard science. The concepts are generally employed by building analysts and construction professionals. While I consider myself a student of building science I do not consider myself a building scientist. I am simply a tradesman with special training. While some in the field might have different opinions about their role in this industry I am…

Continue

Added by Glen Gallo on October 29, 2012 at 11:26pm — 7 Comments

'Energy democracy' becomes more real

Will new technologies democratize energy much the way the Internet did information?

Industry movement seems to point in that direction with the rise of the smart grid, time-of-day pricing, distributed solar, and the electric vehicle. Together these technologies offer a vision of a less centralized energy system, one where communities and households ‘vote in’ or shape the electric grid by how they decide to consume energy, a phenomenon also called the …

Continue

Added by Elisa Wood on October 25, 2012 at 9:10am — 4 Comments

Building Code: ACCA Manual S

     A seldom practiced design procedure, equipment selection, has been part of the International Residential Code for many years, and local MA/RI code at least since 2010.  This critical step is the second part of residential system design, following a Manual J load calculation and prior to the Manual D duct design.  I think confusion around the dated manual has contributed to lack of use and enforcement.  Whether you are installing an air-conditioner, heat pump, furnace, or boiler, there…

Continue

Added by Christopher Morin on October 24, 2012 at 10:00am — 1 Comment

401(e): Workplace Energy Saving Program

Community Energy Services draws from CEE’s experience applying community organizing principles to…

Continue

Added by Anna Jursik on October 22, 2012 at 7:04am — 1 Comment

Why Test?

I've been wondering lately why we're so hell bent on testing houses. After all, we're a bunch of smart building scientist type guys and gals, right? We may not be Joe Lstiburek's (for which our families and fiends, unbeknownst to them, are mighty grateful), but we have a working knowledge of air and moisture movement, thermal and pressure boundaries, various Deltas (T, P, and the rest), and all that other stuff BPI made us learn. We don't assess houses one day in Tallahassee, the next in…

Continue

Added by Ron Jones on October 18, 2012 at 1:00pm — 6 Comments

Words That Turn Home Energy Pros Into Building Science Dorks

"Ma'am, we've just tested your house and found your infiltration rate to be 16.7 ACH50, your R-values to be only 26% of the IECC…

Continue

Added by Allison A. Bailes III on October 18, 2012 at 8:01am — 4 Comments

Born Into Home Performance—Q&A with Maureen Mahle

Maureen Mahle is the vice president and director of Sustainable Housing Services for Steven Winter Associates, Inc. She’s also new to the Home Energy Board of Directors. As a welcome to the board, and as an introduction to our readers, we decided to get to know Maureen a little better. Below is our conversation.

Home…

Continue

Added by Home Energy Magazine on October 18, 2012 at 9:16am — 1 Comment

Speaking to the Heart and Soul of Home Performance

It was my first weatherization conference since becoming the editor of Home Energy. I remember sitting in the crowd listening to the opening speaker and being very inspired. We’re soldiers, I thought. Some of us are on the front lines—the weatherization workers—and some of us, like the staff at Home Energy, offer support from the safety of our offices in Berkeley. We are fighting for our nation’s energy security, and for the health of children and adults, and for the survival…

Continue

Added by Jim Gunshinan on October 17, 2012 at 3:00pm — No Comments

Soon photovoltaic from any materials

 The discovery of new materials for making cheap and efficient solar cells is the Holy Grail for solar panels industry. 

 Some recent findings represent a significant step towards achieving that goal.…

Continue

Added by Gjorevski Saso on October 15, 2012 at 10:02am — No Comments

How Urban Development Impacts Energy Retrofit Programs

I grew up in Los Angeles, described as a true ‘post-modern’ city because it lacks a recognizable center. Sprawling in size, it developed as a cluster of independent destinations connected by a network of transportation lines. This is partially why the symmetric pattern of Twin Cities neighborhoods, while more common across the Midwest, is notable to me. A much older settlement, the Minneapolis-St Paul axis forms a central core, and the suburbs radiate outward in tiers. The first ring suburbs…

Continue

Added by Jenny Edwards on October 15, 2012 at 7:29am — 1 Comment

Know Your Enervee Score: Energy Efficiency Made Easy

Back in May, I was looking to buy a new flat screen computer monitor for my home office. After spending ten minutes searching online, I found the best deals at J&R Electronics and decided to go down to their Sunnyvale store to make sure that I could find a model that would connect successfully to my MacBook Air laptop. I was overwhelmed by the vast selection of flat screen monitors and really had no idea which one to go for after I narrowed my search down to a 23" size monitor and a…

Continue

Added by Alex Katzman on October 11, 2012 at 8:49am — No Comments

CA Title 24 will require RTUs to have automated fault detection and diagnostics

When your "check engine" light comes on in your car, your mechanic (or you, with a low-cost codes reader) can get a quick readout about the possible problem(s).  Now, CA's Title 24 will require something similar for Rooftop HVAC units by 2014.

See this article:…

Continue

Added by Elizabeth Stuart on October 11, 2012 at 1:50pm — 2 Comments

What Is a Home Performance Contractor?

Lately we've been thinking about how readers who know nothing about Home Energy magazine, or home performance for that matter, would react if they stumbled upon our website. Yes, our magazine is aimed at home performance professionals, but what about the people that are just entering the profession? Or those that are thinking about it?

In an effort to help those individuals understand what our industry does, and how our magazine is connected, we came up with the following…

Continue

Added by Home Energy Magazine on October 11, 2012 at 1:31pm — No Comments

Innovation and Design Thinking

Reposted from i.e., the Center for Energy and Environment's Innovation Exchange blog -- http://mncee.org/Innovation-Exchange/ie/

The business and technology worlds make much of innovation and how it will power the future. One process that has become popular as a means to foster innovation in companies is design thinking. Tim Brown, the CEO and president of …

Continue

Added by Lester Shen on October 7, 2012 at 10:00am — 12 Comments

What does the the N factor stand for

I have a theory for what the N stands for in the N factor but really no clue. I understand what the n factor intends to do and how to use it but fail to understand how it applies in the real world and in particular to San Diego.

The N factor is a correction number that smooths the data for blower door numbers in multiple climate zones of homes of different size and height and brings the homes into a level playing field. We then can use this number…

Continue

Added by Glen Gallo on October 6, 2012 at 11:20am — 7 Comments

One Millionth Home Weatherized

Today the National Association for State Community Services Programs (NASCSP) and the Community Action Partnership celebrated the one-millionth home weatherized nationwide since April 2009. Partnering with state and local…

Continue

Added by Home Energy Magazine on September 27, 2012 at 4:01pm — No Comments

NASCSP National Carbon Trading Project

While attending the NASCSP conference last week in Atlanta, Georgia, the overall message was: How do we keep the Weatherization Assistance Program (WAP) relevant in the future? Also, how do we find more funding to keep our programs alive post-ARRA?

Along with a lot of brainstorming and industry conversation happening around the two questions posed above, NASCSP took one of the sessions to tell attendees about their initiatives for…

Continue

Added by Macie Melendez on September 25, 2012 at 11:53am — No Comments

Real Numbers for a LEED for Homes Indiana Success Story

The Gulyas residence in Bloomington, Indiana was one of the first homes in Indiana to receive LEED for Homes Platinum certification. Through the use of passive house techniques and additional sustainable design strategies this project easily met and surpassed the criteria for LEED.



A home energy metric measuring energy per square foot calculation and spreadsheet was created by Allison Bailes III, PhD, to help effectively measure electric and gas usage in a house.…

Continue

Added by Home Energy Magazine on September 25, 2012 at 11:51am — No Comments

Bundling of Products & Services - How to Survive and Grow A Home Performance Business in 2013 and Beyond?

Working with my customers and friends that are home performance contractors we always seem to be seeking answers to questions such as:

What will make my business survive in the short term?

What does it mean to run a successful home performance business?  

What can I do if my local utility rebates, tax credits, and programs change?

For the most part it is true that individuals and…

Continue

Added by Roch Naleway on September 22, 2012 at 8:00am — 14 Comments

Women in Energy: Students

Reposted from i.e., the Center for Energy and Environment's Innovation Exchange blog -- http://mncee.org/Innovation-Exchange/ie/

Center for Energy and Environment research and programs focus on Minnesota buildings and homes, but advances in energy efficiency impact people all over the world. The…

Continue

Added by Anna Jursik on September 17, 2012 at 9:00am — No Comments

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Tom Conlon commented on Kurt Shafer's blog post What is your opinion about members promoting products here?
"I just checked the site Guidelines Kurt, and any true "promotions" should be posted in…"
7 hours ago
Tom Conlon posted a discussion

Whole House Fans - Love 'Em or Not?

I just searched this forum for "Whole House Fan", but I didn't find much about them (except …See More
8 hours ago
Richard Beyer replied to Mike Kandel's discussion Our Homes Suck – And That's Why Our Kids Have Sinus Problems
"Don, Thank you for the praise! I only wish that some of these profiteers could answer my questions…"
10 hours ago
Richard Beyer replied to Mike Kandel's discussion Our Homes Suck – And That's Why Our Kids Have Sinus Problems
"Todd, This report (attached link) below on poor people living in subsidized housing show's…"
11 hours ago
Mike Kandel added 4 discussions to the group Building Performance Institute (BPI)
12 hours ago
Mike Kandel posted discussions
12 hours ago
Nate Adams commented on Jim Gunshinan's blog post My Energy Upgrade California—The Numbers Are In
"Jim, Glad to help! OK, a touch of soap box. So long as we don't tell people EE is free and…"
13 hours ago
Kurt Shafer commented on Kurt Shafer's blog post What is your opinion about members promoting products here?
"Bob, Good idea. I see that you are a window energy reduction expert. You might consider adding…"
14 hours ago
Robert (Bob) Bacon commented on Kurt Shafer's blog post What is your opinion about members promoting products here?
"Kurt, I would explain what energy/efficiency problem this device solves and explain the science the…"
14 hours ago
Ben Jacobs replied to Mike Kandel's discussion Our Homes Suck – And That's Why Our Kids Have Sinus Problems
"I agree that in many homes the indoor air sucks.  However, a lot of this problem is caused…"
16 hours ago
Kurt Shafer commented on Kurt Shafer's blog post What is your opinion about members promoting products here?
"Tom, thank you for your odd reference to a leaky duck. It is a bit off topic since I was not asking…"
16 hours ago
Tom Delconte commented on Kurt Shafer's blog post What is your opinion about members promoting products here?
"Shameless self promotion here sucks like a leaky duck!"
18 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service